Dell Inspiron 7390 2n1 Service Manual

Contents

Replacing the system boardWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow thesteps in Before working inside your computer. After working inside your computer, follow the instructions in After working insideyour computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup programafter you replace the system board.NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You mustmake the appropriate changes again after you replace the system board.Procedure1 Align the screw holes on the system board with the screw holes on the palm-rest assembly.2 Replace the four screws (M2x2) that secure the system board to the palm-rest assembly.3 Slide the fingerprint-reader cable to the system board and close the latch to secure the cable.4 Slide the touch-screen board cable to the system board and close the latch to secure the cable.5 Adhere the tape that secures the touch-screen board cable to the system board.6 Slide the I/O-board cable to the system board and close the latch to secure the cable.7 Adhere the tape that secures the I/O-board cable to the system board.8 Connect the coin-cell battery cable to the system board.9 Slide the touchpad cable to the system board and close the latch to secure the cable.10 Slide the keyboard-backlight cable to the system board and close the latch to secure the cable.11 Slide the keyboard cable to the system board and close the latch to secure the cable.3152 Replacing the system board